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| − | [[UCVM]] is an software system for hosting and querying 3D velocity models. Currently, multiple California velocity models are supported in UCVM. | + | [[UCVM]] is an software system for hosting and querying 3D velocity models. Multiple California velocity models can be accessed using the UCVM software, including both southern and northern california 3D models. |
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| − | To support development of UCVM, we are holding "virtual" workshops, that means teleconferences, to discuss and plan both scientific and technical issues regarding its development.
| + | We are using phone-based teleconferences, we call workshops, to discuss and plan scientific and technical issues relating to the development of [[UCVM]]. Length of call is typically 90 minutes, with a target of one call per month. Next call is now scheduled: |
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| − | == Workshop July 2011 ==
| + | *Date: Thursday, July 28, 2011 |
| | + | *Time: 1:30 PM - 3:00 PM (Pacific Time) |
| | + | *[[UCVM Workshop July 2011]] (Workshop Handouts) |
| | + | *[[UCVM]] (Software Development) |
| | + | *[https://college.usc.edu/scecconnect Shared Desktop] |
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| | + | == Upcoming UCVM Workshops == |
| | + | *[[UCVM Workshop July 2011]] |
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| − | UCVM Software Design | + | == Past UCVM Workshops == |
| − | - Framework for hosting multiple CVMs
| + | *[[UCVM Workshop May 2011]] |
| − | - Standardized query interface
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| − | - How UCVM supports queries for non-standard models (e.g. How does UCVM handle elevation query using CVM-S4 (no elevation model)
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| − | Selected standardized statewide properties including:
| + | == Presentation Material == |
| − | - Topography
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| − | - Bathymetry
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| − | - Statewide Geotechnical layer from Vs30 and Wald Vs30 topography relationship
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| − | - Georeference standardization
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| − | Selected UCM Coverage Region:
| + | Power-point presentations: |
| − | - Discuss portability of UCVM other regions including Central US
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| − | Currently Supported Models
| + | * [http://earth.usc.edu/~patrices/presentations/scec_ucvm_sw_design.ppt UCVM S/W Design] |
| − | - CVM-S4
| + | * [http://earth.usc.edu/~patrices/presentations/scec_ucvm_tools.ppt UCVM-based Tools] |
| − | - CVM-SI
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| − | - CVM-H 11.2
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| − | - CVM-H 6.3
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| − | - CenCal USGS
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| − | - Graves Northern Cal
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| − | - Lin Thurber statewide | |
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| − | Requirements for Hosted Models
| + | == Related Entries == |
| − | - query interface
| + | *[[IDV]] |
| − | - projection definition
| + | *[[UCVM]] |
| − | | + | *[[CVM-H]] |
| − | Options for storing hosted CVMS
| + | *[[CVM-S]] |
| − | - GTL etree
| + | *[[Community Velocity Model]] |
| − | - CVM-S4 objects
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| − | - CVM-H gocad
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| − | - Lin-Thurber tables
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| − | - Po Chen CVM-SI mesh
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| − | | |
| − | Support for HPC creation of Large Meshes by UCVM
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| − | - parallel query capabilities
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| − | - large mesh making capabilities
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| − | | |
| − | ETREE support
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| − | - Description of etree import and export by UCVM
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| − | | |
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| − | CVM Differencing capabilities
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| − | - Example differences between CVM-S4 and CVM-SI
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| − | - Proposed differencing tools
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| − | - Other CVM differences of interest
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| − | CVM Evaluation System Design
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| − | - Evaluation using point sources
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| − | - Evaluation using large historical events
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| − | - Goodness of fit measures in use
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| − | - Proposed GOF measures to be used
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| − | | |
| − | Evaluation results for 3 events
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| − | - Evaluate sensitivity of current evaluation system using 3 events and 3 CVM’s
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| − | - Chino Hills,Gilroy, Oakland and CVM-H, CVM-S4, CenCal
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| − | | |
| − | == Workshop May 2011 == | |
| − | California State-wide Community Velocity Model (CVM) Development: a State-wide 3D Velocity Model for California
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| − | | |
| − | Workshop Date: Tuesday 10 May 2011
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| − | Workshop Time: 9:30am – 11:00am (90 minutes)
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| − | Agenda Version: 8 May 2011
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| − | 1. We plan to hold two CVM development workshops via teleconference calls prior to the next SCEC Annual Meeting (which will be held Sept 11-14, 2011).
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| − | 1.1. First CVM workshop to discuss and establish CVM development goals (10 May 2011)
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| − | 1.2. Second CVM workshop to discuss CVM development plans (week of June 13, 2011)
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| − | 2. Several trends are pushing SCEC towards development of state-wide models:
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| − | 2.1. State-wide Earthquake Rupture Forecast (UCERF) development
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| − | 2.2. CISN and ANSS
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| − | 2.3. Operational Earthquake Forecasting
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| − | 2.4. Simulation for large California regions
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| − | 2.5. SCEC4 goals
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| − | 2.6. Statewide wave propagation-based PSHA calculations (CyberShake)
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| − | 3. SCEC context supporting development of state-wide CVM
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| − | 3.1. SCEC’s long standing scientific goal of compatible, integrated, computational structural models to support seismic hazard computational models including fault stress models, dynamic rupture simulations, wave propagation models, earthquake simulators:
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| − | 3.1.1.1. CVM
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| − | 3.1.1.2. CFM
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| − | 3.1.1.3. Block Model
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| − | 3.1.1.4. Crustal Motion Model
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| − | 3.2. UCERF2.0 development
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| − | 3.3. UCERF3.0 development
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| − | 3.4. Release of multiple southern California CVM’s (CVM-S4 and CVM-H 11.2)
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| − | 3.5. Introduction of alternative Geotechnical layer models-based on Vs30
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| − | 4. Review of CVM User Communities to be considered:
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| − | 4.1. High frequency wave propagation simulations (>1Hz)
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| − | 4.2. Low frequency wave propagation simulations (< 1Hz)
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| − | 4.3. Dynamic rupture modeling
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| − | 4.4. Seismic hazard PSHA calculations
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| − | 4.5. Others to be considered?
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| − | 5. Discussion of Capabilities of Proposed state-wide CVM
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| − | 5.1. Region to be covered
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| − | 5.2. What features will it have (GTL, bathymetry, topography)
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| − | 5.3. What users will is support
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| − | 5.4. Resolution
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| − | 5.5. Expression of uncertainty
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| − | 5.6. Arbitrary precision
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| − | 5.7. Expression of maximum useful frequency or resolution
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| − | 6. Model construction, implementation, and delivery
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| − | 6.1. New model development
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| − | 6.2. Combining or integrating best of existing models
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| − | 6.3. Management of alternative models
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| − | 6.4. Blending of existing models
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| − | 6.5. Delivery of model to end-users
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| − | 6.6. Delivery of model to model-developers
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| − | 7. Evaluation of Candidate and Alternative Models
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| − | 7.1. Proposed use of wave propagation simulations and comparison of seismograms to observations to evaluate alternative models
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| − | 7.2. Description of existing SCEC CVM evaluation system (developed for CVM-H,CVM-S)
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| − | 7.3. Additional capabilities needed in an automated testing system which can repeat the same simulation and same evaluation tests with alternative models
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| − | 7.4. Selection of goodness of fit metrics
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| − | 7.5. Selection of goodness reference earthquakes distributed around the state and associated observational datasets
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| − | 7.6. Level of support by SCEC for alternative models
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| − | 8. Review of existing models
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| − | 8.1. CVM-S4 (Magistrale)
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| − | 8.2. CVM-S4 3D inversion update (Chen)
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| − | 8.3. CVM-H 11.2 (Shaw)
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| − | 8.4. CVM-H-based Central California update (Tape)
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| − | 8.5. USGS Central California Model (Aagaard)
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| − | 8.6. Lin-Thurber state-wide model (Lin)
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| − | 8.7. Hauksson model (Hauksson)
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| − | 8.8. Graves Mendicino Model (Graves)
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| − | 8.9. Thurber Northern California Model (Thurber)
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| − | 8.10. Reno Nevada Model (Magistrale)
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| − | 8.11. Las Vegas Nevada Model (Magistrale)
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| − | 9. External Groups with CVM Development Tools, Interests, Capabilities
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| − | 9.1. IRIS
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| − | 9.2. USGS
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| − | 9.3. Others?
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| − | 10. Technical Development Approach
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| − | 10.1. Development of CVM software:
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| − | 10.2. UCVM software is intended to support statewide-CVM development.
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| − | 10.3. Supports standardized interface that can access multiple underlying models
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| − | 10.3.1. CVM-S4
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| − | 10.3.2. CVM-H 11.2
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| − | 10.3.3. USGS Central California Model
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| − | 10.3.4. Lin-Thurber
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| − | 10.3.5. 1D background models
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| − | 10.4. Supports state-wide topography, bathymetry models
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| − | 10.5. Supports application of state-wide geotechnical layer based on Wills/Wald Vs30
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| − | 10.6. Supports creation and delivery of etree models
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| − | 10.7. Supports query by depth and query by elevation
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| − | 10.8. Supports creation of large meshes
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| − | 10. Tools required for Model Development
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| − | 10.1. Automated CVM evaluation capabilities using wave propagation simulations
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| − | 10.2. Mesh construction
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| − | 10.3. Combining alternative models (e.g. Lin-Thurber with CVM-H 11.2)
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| − | 10.4. Mesh slices and profiles
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| − | 10.5. Model volume visualization
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| − | 10.6. Migration between existing model formats (USGS e-tree, Gocad voxels, CVM-S objects, Lin-Thurber tables)
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| − | 11. Software development activities and priorities
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| − | 11.1. Discussion of current UCVM capabilities
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| − | 11.2. Discussion of software development priorities
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